Training Within Industry - TWI Fire Underwriters Knot Training Within Industry (TWI) originated in the U.S. in the early 1940’s to support the war effort by boosting industrial production. It effectively and efficiently trained employees, including many women entering the manufacturing world for the first time. TWI was an unqualified success
· 86% of companies increased production by at least 25%
· 100% reduced training time by more than 25%
· 55% reduced scrap by at least 25%
· 100% reduced grievances by more than 25%
After the war, the U.S. adopted a mission to help quickly rebuild Japan’s industrial base. TWI was introduced to the Japanese government and industry where it was embraced and intensively integrated into manufacturing methods throughout Japan. TWI was one of the crucial building blocks of the Toyota Production System, the model for Lean Manufacturing.